countsort: Low-level sorting: counting sort

In truecluster/bit: Classes and Methods for Fast Memory-Efficient Boolean Selections

Low-level sorting: counting sort

Description

In one pass over the vector NAs are handled according to parameter na.last by range_sortna(), then, if the vector is unsorted, counting sort is invoked.

Usage

countsort(x, na.last = NA)

Arguments

x	an integer vector
na.last	NA removes NAs, FALSE puts NAs at the beginning, TRUE puts NAs at the end

Value

a sorted vector

Examples

countsort(c(2L, 0L, 1L, NA, 2L))
countsort(c(2L, 0L, 1L, NA, 2L), na.last=TRUE)
countsort(c(2L, 0L, 1L, NA, 2L), na.last=FALSE)

truecluster/bit documentation built on April 12, 2025, 7:39 p.m.